how to set radio button in python and tkinter

Question

I have the following code (in python and tkinter):

c1 = tk.Radiobutton (frm, text='a',variable= radioValue ,value=1)
c2 = tk.Radiobutton (frm, text='b',variable= radioValue ,value=2)
c3 = tk.Radiobutton (frm, text='c',variable= radioValue ,value=3)
c4 = tk.Radiobutton (frm, text='d',variable= radioValue ,value=4)

then I retrieve a value called r from database, it is between 1 and 4.

I use r to set a radio button to on by using many if statements, and it works well. The if statements are:

if (r==1): 
    (c1.select())
if (r==2): 
    (c2.select())
if (r==3): 
    (c3.select())
if (r==4): 
    (c4.select())

Is there a better solution instead of multiple if?

You can save your radio button in a dict with key referring to the radio button of its value then later use get method of the dict. — Saad
– Saad, Commented May 27, 2021 at 6:46

acw1668 · Accepted Answer · 2021-05-27 07:04:28Z

2

You can simply use the tkinter variable radioValue to set the active radiobutton:

radioValue.set(r)

answered May 27, 2021 at 7:04

acw1668

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